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Conversion Instructions S-20/S-23 HM/F4/F5 Power supply 09/99 edition 35 Å Rem ove the two jumpers between te rminals 1U 2 - 1V2 a nd 1V2 - 1W2 (see Fi g. 8 - 2). Fig. 8 - 2 Waff lepack changer transformer T1, connection…

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Power supply Conversion Instructions S-20/S-23 HM/F4/F5
8 Converting the wafflepack changer from 3x400 VAC to 3x230 VAC 09/99 edition
34
8 Converting the wafflepack changer from
3x400 VAC to 3x230 VAC
DANGER OF DEATH 8
Å Before you start rewiring the wafflepack changer:
– switch the placement system off,
– disconnect it from the mains supply and
– secure it to prevent reclosing as described in section 2
or 8
Å remove the plug for the wafflepack changer mains supply and the square plug for the safety
loop from the placement system.
Å Loosen the four hexagon socket-head screws (item 1 in Fig. 8 - 1) at the back of the wafflepack
changer.
Å Remove the cover plate (item 2 in Fig. 8 - 1).
Fig. 8 - 1 Wafflepack changer - accessing the power supply unit
Conversion Instructions S-20/S-23 HM/F4/F5 Power supply
09/99 edition
35
Å Remove the two jumpers between terminals 1U2 - 1V2 and 1V2 - 1W2 (see Fig. 8 - 2).
Fig. 8 - 2 Wafflepack changer transformer T1, connection: 3 x 400 VAC
8
Å Place three jumpers between the following terminals:
1U1 → 1W2 BR5 (see Fig. 8 - 3)
1U2 → 1V1 BR7 (see Fig. 8 - 3)
1V2 → 1W1 BR6 (see Fig. 8 - 3)
Å Finally, replace the cover on the back of the wafflepack changer.
Power supply Conversion Instructions S-20/S-23 HM/F4/F5
9 Inserting plug-in adapter X1 into the service socket 09/99 edition
36
Fig. 8 - 3 Wafflepack changer transformer T1, connection: 3 x 230 VAC
9 Inserting plug-in adapter X1 into the service socket
Å For the USA version, plug the USA adapter X1 into the service socket.
10 Converting the placement system, component
tables and WPC from 3x230 VAC/115 VAC
to 3x400 VAC/230 VAC
The wiring for the 3x400 VAC/230 VAC versions is illustrated in the figures for the previous sec-
tions. 10
WARNING 10
After rewiring the placement system, REMEMBER to covert the component tables and wafflepack
changer as well, otherwise the transformers may be damaged. 10